https://bugs.freedesktop.org/show_bug.cgi?id=38488
--- Comment #10 from Harald Judt h.judt@gmx.at 2011-06-28 11:24:32 PDT --- I've updated the kernel to current tuxonice-head which is somewhere in between linux-3.0-rc4 and linux-3.0-rc5, and the strange voltage issue has been fixed. Resuming from hibernation still produces the same problem with not being able to change the clock speeds, though.
Furthermore, the machine will not awake correctly after the second or third suspend attempt; the screen stays black.